Add 56/16 and 81/40
1st number: 3 8/16, 2nd number: 2 1/40
56/16 + 81/40 is 221/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
56/16 = 56 × 5/16 × 5 = 280/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
81/40 = 81 × 2/40 × 2 = 162/80 - Add the two like fractions:
280/80 + 162/80 = 280 + 162/80 = 442/80 - 442/80 simplified gives 221/40
- So, 56/16 + 81/40 = 221/40
In mixed form: 521/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/32+81/40 56/16+81/80 56/48+81/40 56/80+81/40